Watchmaker&#39;s hand-vise.



No. 650,395. Patented Mai/29, I900.

c. H. JENKINS.

WATCHMAKERS HAND VIS E.

(Application filed Feb. 14, 1900.)

(No Model.)

' UNITED STATES PATENT OFFICE.

CHARLES H. JENKINS, OF LEBANON, NEW HAMPSHIREASSIGNOR OF ONE- HALF TOFRANK B. KENDRIOK AND WILLIAM F. DAVIS, OF SAME PLACE.

WATCHMAKERS HAN D-VISE.

SPECIFICA'JIION forming part of Letters Patent No. 650,395, dated May29, 1900.

Application filed February 14, 1900. $erial No. 5,131. (No model.)

To all whom it may concern:

Be it known that I, CHARLES H. JENKINS, a citizen of the United States,residing at Lebanon, in the county of Grafton and State of NewHampshire, have invented a certain new and useful Improvement inWatchmakers Hand- Vises, of which the following is a specification,reference being had therein to the accompanying drawings.

My invention relates to hand-Vises espe cially adapted for the use ofwatchmakers, and has for its object to provide a simple and eflicientmeans for holding the small and deli cately-made parts of a watch orother like device while the same are being operated upon or in the actof being inserted into place. It is especially suited for holding allthe metallic parts of a watch and all those partssuch as screws,pallets, pinions, Ate-which would not be likely to be crushed or brokenby the force of the grasping action of the jaws of the vise. For thisreason it could not be used as a jewel-holder, as the force of the jawswhen closed would crush the jewel or other similar article.

The invention consists in the novel features of construction hereinafterset forth and described, and more particularly pointed out in the claimshereto appended.

Referring to the drawings, Figure 1 is a side elevation showing the jawsopen. Fig. 2 is a plan View, and Fig. 3 is a side elevation showing thejaws closed.

Like letters of reference refer to like parts throughout the severalviews.

a denotes the handle, and b b metallic bars made, preferably, from onepiece of thin fiat metal and provided at their inner ends with a shankc, which is suitably secured to the handle a, and terminating at theirouter ends in the jaws d d.

c is a hole bored or cut through the bars, near the shank, the functionof which is-to give greater resiliency or spring to the bars, which area slight distance apart, this distance gradually increasing from thesaid hole to the jaws proper.

e is a cam-lever pivoted to one side of the upper bar at f and providedwith a cam-slot g, in which the knob or pin h, attached to one side ofthe lower bar, is free to travel as the said lever is moved down or upin parallelism with said bars, as hereinafter set forth. The lever e isprovided with a knob or projection i, which is countersunk in thesame,for greater convenience in manipulating the tool.

The mode of operation is as follows: When it is desired to hold anyobject such as has been above referred to, the article is placed withinthe jaws d d and the cam-lever pulled down. This action, owing to thecam-operated mechanism above described and the spring} bars, brings thejaws together and causes the article to be firmly grasped and held. Torelease the article, the operation is reversed.

What I claim, and desire to secure by Letters Patent, is

1. In a hand-Vise, the spring-bars b,b, provided with the jaws d, d,constructed of thin flat material, combined with the cam-lever e pivotedto the side of one of said bars and provided with a cam-slot, and theknob or pin it arranged on the side of the other of said bars andengaging said cam-slot, whereby the said cam-lever moves in parallelismwith said barsto open and close the jaws, substantially as described.

2. In a hand-vise, the spring-bars b, 6, provided with the jaws d, d, atone end and terminating in the shank c at the other end, all

constructed of a thin fiat piece of material, combined with thecam-lever e pivoted to the side of one of said bars and provided with acam-slot, the knob or pin it arranged on the side of the other of saidbars and engaging said cam-slot, whereby the said cam-lever moves inparallelism with said bars to open and close the jaws, and the handle ainto which the said shank is inserted, substantially as described.

3. In a hand-vise, the spring-bars b, 6, provided with the jaws d, d,constructed of thin flat material, combined with the cam-lever e pivotedto the sideof one of said bars and provided with a cam-slot, and theknob or 111 witness whereof I have hereunto affixed pin h arranged onthe side of the other of said my signature, this 5th day of February,1900, bars and engaging said cam-slot, whereby the in the presence oftwo Witnesses.

said cam-lever moves in parallelism with said CHARLES H. JENKINS. 5 barsto open and close the jaws, and the knob WVitnesses: I

11 on said cam-lever, substantially as and for 'I-IALLE E. VVILLIs,

the purpose described. I J. L. SPRING.

